Accidental damage

Accidental damage is not covered by your regular warranty; if you purchased Applecare +, accidental damage will be covered with a service charge.

And no, you cannot exchange it - it can be fixed with Applecare +. Or, you can pay to have it fixed.

Hi,

As far as I know, if you are still under AppleCare, AppleCare+, or the 1 year manufacturer's warranty and you have a broken screen AND another issue that is covered under warranty, Apple will actually replace your device for free — IF the other issue is not in any way connected to the screen break.

Try to contact Apple support.

https://support.apple.com/en-us/HT201232